AlHijjah 16, 1435, Oct 10, 2014, SPA -- The World Health Organization (WHO) once again raised the death toll attributed to the Ebola outbreak, according to AP. The Geneva-based U.N. agency said that 4,033 confirmed, probable or suspected Ebola deaths have now been recorded. All but nine of them were in the three worst-affected countries, Liberia, Sierra Leone and Guinea. Eight of the rest were in Nigeria, with one patient dying in the United States. On Friday, David Nabarro, the U.N. special envoy for Ebola, said the number of Ebola cases is probably doubling every three-to-four weeks and the response needs to be 20 times greater than it was at the beginning.